Asymmetric synthesis and stereochemistry of chiral cis- and trans-3-alkyl-4-aminopiperidines
作者:G. V. Grishina、E. R. Luk’yanenko、A. A. Borisenko、M. Yu. Antipin
DOI:10.1007/s10593-012-1052-9
日期:2012.8
obtained by diastereoselective synthesis from 1-methyl- and 1-benzyl-4-[(S)-1-phenylethyl]iminopiperidines, using the following reaction sequence: metalation with lithium diethylamide, alkylation with alkyl halides, and hydride reduction or hydrogenation over Raney nickel. The steric direction of the reaction, three-dimensional structure, preferred conformation, and absolute configuration of the resultant